fuel temp sensor location

[jon sparham]

I have fault code P0183 fuel temp sensor.

Does any body know where it is located on an A3 8p.

Thanks

 

[Stevey Y]

3 hours ago, jon sparham said:

I have fault code P0183 fuel temp sensor.

Does any body know where it is located on an A3 8p.

Thanks

 

Hi its usually on the fuel return pipe from the fuel rail.

Steve.

[cliffcoggin]

I did not know a fuel temperature sensor existed on A3s. What is its purpose? I could understand diesel temperature being important in cold climates because diesel can throw a waxy sediment when it gets cold, but surely not in Newquay?

[Stevey Y]

21 hours ago, cliffcoggin said:

I did not know a fuel temperature sensor existed on A3s. What is its purpose? I could understand diesel temperature being important in cold climates because diesel can throw a waxy sediment when it gets cold, but surely not in Newquay?

Hi Cliff they are on all later cars as the sensor lets the ECU know the temp of the returning fuel from the rail, this is because part of the returning fuel is used to supplement the level in the filter housing when the car is under heavy load, most of the fault codes that are thrown up by this sensor are either due to bad wiring or most likely air bubbles in the return where it can't read warm air.

Steve.

[cliffcoggin]

Well who'd a thought it? Thanks.